CN211144751U - Cylinder cover assembly and compressor with same - Google Patents

Abstract

The utility model provides a cylinder head subassembly and have its compressor. The cylinder head assembly includes a cover body; the lift limiting assembly is detachably connected with the cover body and is provided with a vibration damping portion, and the vibration damping portion is used for reducing noise generated when the exhaust valve plate collides with the cover body. Set up the spacing subassembly of detachable lift on the lid to set up damping portion on the spacing subassembly of lift, the setting can reduce the noise of valve block striking on the lid like this, has improved this cylinder assembly's practicality effectively.

Description

Cylinder cover assembly and compressor with same

Technical Field

The utility model relates to a compressor equipment technical field particularly, relates to a cylinder head subassembly and have its compressor.

Background

As is well known, the development direction of home appliance compressors tends to be miniaturized, efficient and low-noise, the requirement on the low-voltage starting capability of the refrigerator compressor is gradually increased, the characteristics of miniaturization, low-voltage starting capability and low noise have obvious market competitive advantages and good user experience, and after the pursuit of people for good life becomes a main social contradiction, higher requirements on the space, energy conservation and noise reduction of home appliances are provided, and products with the characteristics are increasingly popular with consumers.

Totally closed reciprocating compressor cylinder head structural style is various on the existing market, one kind is that the exhaust valve piece lift is spacing not to set up on the cylinder head, another kind is that the exhaust valve piece lift is spacing to set up on the cylinder head, has following limitation and problem in the structure of current exhaust valve piece setting on the cylinder head: (1) the lift limiting structure arranged on the cylinder cover cannot be adjusted, the lift height cannot be changed to meet the design requirements of different displacement volumes of different types, and the universality of parts is poor; (2) the exhaust valve plate lift limit is arranged on the cylinder cover, when the compressor runs, the exhaust valve plate directly slaps the limit structure, and the impact noise of the valve plate directly radiates through the cylinder cover, so that the noise of the compressor is higher; (3) the lift limit structure is integrally cast in the existing cylinder cover structure, is made of metal, and is slapped on the cylinder cover by the exhaust valve plate made of metal, so that the impact noise of the valve plate is large, and the low-noise design of the compressor is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a cylinder head subassembly and have its compressor to solve the compressor valve block striking among the prior art and produce the big problem of noise on the cylinder head.

In order to achieve the above object, according to an aspect of the present invention, there is provided a cylinder head assembly including: a cover body; the lift limiting assembly is detachably connected with the cover body and is provided with a vibration damping portion, and the vibration damping portion is used for reducing noise generated when the exhaust valve plate collides with the cover body.

Further, the lift limit assembly includes: the first end of the limiting column is detachably connected with the cover body, the second end of the limiting column forms a stop end, and the vibration damping part is connected with at least one end of the limiting column.

Further, the vibration damping portion includes: the flexible material component section is connected with at least one end of the limiting column.

Furthermore, the flexible material component section and at least one end of the limiting column are integrally injection-molded.

Further, an external thread is arranged on the outer surface of the first end of the limiting column.

Furthermore, the end face of the second end of the limiting column is of an inclined plane structure.

Further, the vibration damping portion includes: the damping section, the damping section sets up in the lid, and the first end and the damping section butt of spacing post.

Further, the damping portion includes the damping section, and the damping section sets up in the lid, and the spacing subassembly of lift includes: the first end of the limiting column is detachably connected with the cover body and is abutted against the damping section, and the second end of the limiting column forms a stopping end.

Furthermore, a counter bore is formed in the cover body, an internal thread is arranged on the inner circumferential surface of the counter bore, an external thread matched with the internal thread is arranged on the outer circumferential surface of the first end of the limiting column, and the length of the limiting column extending into the counter bore is adjustably arranged so as to change the stroke of the valve plate moving to the second end of the limiting column.

Furthermore, the operation limiting column can enable a plurality of strokes with different distances to be formed between the second end of the limiting column and the valve plate, and when the operation limiting column is changed from the previous stroke position to the other stroke position, the distance of the limiting column extending into the counter bore is integral multiple of the thread pitch of the external thread.

According to another aspect of the present invention, there is provided a compressor, comprising a cylinder head assembly, wherein the cylinder head assembly is the above cylinder head assembly.

Use the technical scheme of the utility model, set up the spacing subassembly of detachable lift on the lid to set up damping portion on the spacing subassembly of lift, set up like this and can reduce the noise of valve block striking on the lid, improved the practicality of this cylinder subassembly effectively.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an exploded schematic view of an embodiment of a cylinder head assembly according to the present invention;

FIG. 2 shows a schematic cross-sectional structural view of an embodiment of a cylinder head assembly according to the present disclosure;

fig. 3 shows a schematic structural view of an embodiment of a spacing post according to the invention;

wherein the figures include the following reference numerals:

10. a cover body; 11. a counter bore;

20. a lift limit assembly; 21. a limiting column; 22. a damping section.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1-3, according to an embodiment of the present application, a cylinder head assembly is provided.

As shown in fig. 1 and 2, the cylinder head assembly includes a cover 10 and a lift limit assembly 20. The lift limiting assembly 20 is detachably connected to the cover 10, and the lift limiting assembly 20 has a vibration reduction portion for reducing noise generated when the exhaust valve sheet collides with the cover 10.

In this embodiment, the detachable lift range limiting assembly 20 is arranged on the cover 10, and the vibration damping part is arranged on the lift range limiting assembly 20, so that the noise of the valve plate impacting on the cover can be reduced, and the practicability of the cylinder assembly is effectively improved.

Wherein the lift limiting assembly 20 comprises a limiting column 21. The first end of the limiting column 21 is detachably connected with the cover body 10, the second end of the limiting column 21 forms a stop end, and the vibration reduction part is connected with at least one end of the limiting column 21, namely the vibration reduction part can be arranged at one end of the limiting column 21 to realize the vibration reduction and noise reduction effects. The setting can avoid the direct striking of the discharge valve piece of cylinder to the lid like this, can reduce the noise that the lid subassembly produced effectively.

Preferably, the vibration damping portion includes a flexible material component section, and the flexible material component section is connected to at least one end of the stopper column 21. That is, the damping portion may be made of a flexible material having friction reduction and noise reduction properties, and the damping portion may be connected to the stopper post 21, thereby improving the reliability of the stopper post 21. Preferably, the flexible material component section is integrally injection-molded with at least one end of the position-limiting column 21.

As shown in fig. 3, the outer surface of the first end of the limiting column 21 is provided with an external thread, so that the connection stability of the limiting column 21 and the cover body can be improved. In addition, in order to improve the reliability of the stopper valve sheet of the stopper post 21, the end surface of the second end of the stopper post 21 is formed in an inclined surface structure.

In the present embodiment, the vibration damping portion includes a damping section 22. The damping section 22 is disposed in the cover 10, and the first end of the limiting column 21 abuts against the damping section 22. This arrangement enables the damping section 22 to function as a secondary damping.

In another embodiment of the present application, the vibration damping portion includes a damping section 22. The damping section 22 is disposed in the cover 10. The lift limit assembly 20 includes a limit post 21. The first end of the limiting column 21 is detachably connected with the cover 10 and is abutted against the damping section 22, and the second end of the limiting column 21 forms a stop end. That is, in the embodiment, the flexible material may not be disposed on the limiting column 21, and the vibration and noise reduction effect may also be achieved.

As shown in fig. 1, the cover 10 is provided with a counter bore 11. An internal thread is arranged on the inner circumferential surface of the counter bore 11, and an external thread matched with the internal thread is arranged on the outer circumferential surface of the first end of the limiting column 21. The length of the limiting column 21 extending into the counter bore 11 is adjustable, so that the stroke of the valve plate moving to the second end of the limiting column 21 is changed. The cylinder cover body assembly can adapt to compressors of different models by the aid of the arrangement, and practicability of the cylinder cover body assembly is effectively improved.

When the operation limiting column 21 is changed from the previous stroke position to another stroke position, the distance that the limiting column 21 extends into the counter bore 11 is integral multiple of the thread pitch of the external thread. The setting can be according to the model of compressor like this, adjusts the position department that the valve block of spacing post 21 needs to form to corresponding the model fast. For example, when the tip setting of spacing post 21 and valve block complex inclined plane, when operation spacing post 21 moves the stroke of a certain corresponding valve block, the inclined plane structure can realize all the time with the valve block cooperation, and can not take place the condition that valve block and inclined plane deviate from, and wherein, the valve block has certain angle of inclination when the exhaust position, sets up behind the inclined plane, and the one end of lifting up of valve block can be taken on the inclined plane, can prevent that the valve block excessively warp and take place the problem of inefficacy.

The cylinder head subassembly in the above-mentioned embodiment can also be used to compressor equipment technical field, promptly according to the utility model discloses a further aspect provides a compressor, including the cylinder head subassembly, the cylinder head subassembly is the cylinder head subassembly in the above-mentioned embodiment.

Specifically, the problem that the lift height of the lift limiting structure arranged on the cylinder cover cannot be adjusted due to the adoption of the cylinder cover assembly, the universality of parts is poor due to the fact that the cylinder cover cannot adapt to the design requirements of different types of machines is solved, the problem that an exhaust valve plate directly slaps on the lift limiting structure is solved, impact noise is directly radiated through the cylinder cover, the problem that the noise of a compressor is large is caused, the problem that the cylinder cover and the lift limiting structure are cast generally as a whole, the cylinder cover is usually made of metal materials, the impact noise of the valve plate is large, and the problem of low-noise design of the compressor is not.

The cylinder cover assembly is a cylinder cover structure with an adjustable lift for a fully-closed reciprocating compressor, adopts a simple and feasible structural form, realizes height adjustment of a lift limiting structure on the cylinder cover, realizes adjustability of the lift height, increases part universality and adaptability of the cylinder cover, realizes generalization of parts, is favorable for reducing the input of production cost, and reduces the cost of the compressor. This cylinder head structure accessible increases syllable-dividing or vibration isolation material reduces valve block striking noise, reduces the vibration transmission of the direct striking of valve block, plays the effect that weakens striking vibration and reduce striking noise. This cylinder head structure accessible is changed lift limit structure's material, uses the shock attenuation to inhale the material and reduces impact vibration and the noise of valve block.

The cylinder cover and the lift limiting structure adopt a split structure, and the height of the lift limiting structure is adjusted through threaded connection, so that the adjustment change of the lift limiting height on the cylinder cover is realized. The damping piece for damping and reducing noise is added between the cylinder cover and the lift limiting structure, vibration and noise transmission of the exhaust valve plate impacting the lift limiting structure are reduced under the action of the damping piece, and the lift limiting structure is fastened and locked through the reaction of the damping piece.

The lift limit structure can directly reduce the vibration and noise of the exhaust valve plate impacting the lift limit structure by using a vibration-damping and noise-reducing material, and reduce the stress of valve plate impact, thereby prolonging the service life of the valve plate and the service life of the compressor.

The cylinder cover structure for the totally-enclosed reciprocating compressor in the market at present is various, and the cylinder cover structure with the lift limiting structure arranged on the cylinder cover has the problems of poor universality, direct transmission of impact noise of the valve plate, large impact stress of the valve plate and the like. Adopt the cylinder head assembly structure of this application, solve above-mentioned problem and the structural defect who exists effectively.

As shown in fig. 1, cylinder head subassembly structure includes the cylinder head lid promptly, the damping piece is the damping section promptly, lift limit structure is spacing post promptly, cylinder head and lift limit structure fasten fixedly through fastening screw, the design of the screw thread pitch through cylinder head and lift limit structure, the integral multiple of pitch is adjusted can be realized to lift limit structure's assembly height, thereby realize the regulation of valve block lift height, realize the controllability of lift through this structural design, make the cylinder head can adapt to different compressor models, the high demand of lift of different discharge capacities, increase the commonality of part, reduce the input cost of cylinder head mould, thereby reduce the manufacturing cost of compressor. Damping piece damping section assembly promptly is in fastening threaded hole, through extruded reaction effect, plays the effect that prevents lift limit structure pine and take off, and the vibration isolation damping characteristic through damping piece reduces the transmission of exhaust valve piece striking lift limit structure's vibration and noise simultaneously, is equipped with exhaust passage, screw hole, front end counter bore, screw hole and gas volume passageway in the lid.

As shown in the attached figure 2, clamping damping piece among cylinder head and lift limit structure, the damping piece assembly is in the fastening threaded hole of cylinder head, extrude through the screw thread fastening, the damping piece has certain elasticity and carries out the degeneration and adapt to different lift height, the effect that prevents lift limit structure pine and take off is played in the reaction of extrusion deformation simultaneously, the vibration isolation damping characteristic through the damping piece simultaneously, reduce the transmission of exhaust valve piece striking lift limit structure's vibration and noise, thereby play the effect of making an uproar falls in the damping, make compressor vibration noise lower, have with the better matching effect of refrigerator box.

The limiting column is divided into a limiting head part and a limiting tail part, a fastening thread is designed on the limiting tail part in the lift limiting structure, the limiting head part and the limiting tail part can be integrally formed by using a vibration and noise reduction material, the limiting head part and the limiting tail part can be formed in a split manner, the limiting head part is formed by using the vibration and noise reduction material, the limiting tail part can be formed by using a metal material, and the lift limiting structure is manufactured by using the vibration and noise reduction material, so that the noise and vibration of the impact of the exhaust valve plate can be effectively reduced, the noise of the compressor is; simultaneously, the structure can effectively reduce the impact stress of the valve plate, improve the service life and the reliability of the valve plate and prolong the service life of the compressor.

The fastening and the adjustment of the limiting column and the cylinder cover are not limited to the threaded connection mode, and other connection modes can be included, such as clamping, interference fit and the like.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. A cylinder head assembly, comprising:

a cover body (10);

the lift limiting assembly (20) is detachably connected with the cover body (10), the lift limiting assembly (20) is provided with a vibration reduction part, and the vibration reduction part is used for reducing the noise generated when the exhaust valve plate collides with the cover body (10).

2. The cylinder head assembly of claim 1, wherein the lift limit assembly (20) comprises:

the first end of the limiting column (21) is detachably connected with the cover body (10), the second end of the limiting column (21) forms a stop end, and the vibration damping portion is connected with at least one end of the limiting column (21).

3. The cylinder head assembly of claim 2, wherein the vibration dampening portion comprises:

the flexible material composition section is connected with at least one end of the limiting column (21).

4. A cylinder head assembly according to claim 3, wherein the flexible material component section is injection moulded integrally with at least one end of the restraining post (21).

5. The cylinder head assembly according to claim 2, wherein the first end of the stopper post (21) is provided with an external thread on its outer surface.

6. The cylinder head assembly according to claim 2, wherein the end surface of the second end of the stopper post (21) is of a beveled configuration.

7. The cylinder head assembly of claim 2, wherein the vibration dampening portion comprises:

the damping section (22), damping section (22) set up in lid (10), the first end of spacing post (21) with damping section (22) looks butt.

8. The cylinder head assembly of claim 1, wherein the vibration dampening portion includes a damping segment (22), the damping segment (22) being disposed within the cover (10), the lift limiting assembly (20) comprising:

the first end of the limiting column (21) is detachably connected with the cover body (10) and is abutted against the damping section (22), and the second end of the limiting column (21) forms a stopping end.

9. The cylinder head assembly according to claim 2 or 8, wherein the cover (10) is provided with a counter bore (11), an inner circumferential surface of the counter bore (11) is provided with an inner thread, an outer circumferential surface of a first end of the limiting column (21) is provided with an outer thread matched with the inner thread, and the length of the limiting column (21) extending into the counter bore (11) is adjustable so as to change the stroke of the valve plate moving to a second end of the limiting column (21).

10. The cylinder head assembly of claim 9, wherein the stop stud (21) is operable to provide a plurality of strokes of different distances between the second end of the stop stud (21) and the valve plate, and wherein the distance the stop stud (21) extends into the counterbore (11) is an integer multiple of the pitch of the external thread when the stop stud (21) is operated to change from a previous stroke position to another stroke position.

11. A compressor comprising a cylinder head assembly, wherein the cylinder head assembly is as claimed in any one of claims 1 to 10.

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